CVE-2025-62455: Microsoft Windows 10 1607

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper input validation in Windows Message Queuing allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft Windows 10 1607: before 10.0.14393.8688 (fixed in 10.0.14393.8688)
• Microsoft Windows 10 1809: before 10.0.17763.8146 (fixed in 10.0.17763.8146)
• Microsoft Windows 10 21h2: before 10.0.19044.6691 (fixed in 10.0.19044.6691)
• Microsoft Windows 10 22h2: before 10.0.19045.6691 (fixed in 10.0.19045.6691)
• Microsoft Windows Server 2008: affected versions not specified; version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: before 10.0.14393.8688 (fixed in 10.0.14393.8688)
• Microsoft Windows Server 2019: before 10.0.17763.8146 (fixed in 10.0.17763.8146)

Published 2025-12-09. Last modified 2026-09-25.